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of 'Late Cenozoic crustal movements in the Sierra Nevada of California' by M. N. Christensen, 1966

Earl M. P. Lovejoy
Cenozoic crustal movements in the Sierra Nevada; discussion
Geological Society of America Bulletin (1968) 79 (1): 153-157

Abstract

The position of McGee stage till on top of McGee Mountain, Calif., has long been considered as evidence of 4,000 feet of post-McGee vertical displacement along the Sierran frontal fault. Evidence and analysis (Lovejoy, 1964) have shown that such faulting preceded the emplacement of a basalt volcano and associated flows 2.6 m.y. ago, thus precluding significant post-McGee faulting. McGee glacial gradients of 900-1,000 feet per mi, similar to measurements for younger glaciers in the region, indicate that McGee Canyon was shallower and steeper during McGee time. The McGee till, therefore, was most probably emplaced as an alb moraine. Its present position is not evidence of later Sierran frontal uplift by faulting. [See Christensen, ibid., v. 77, p. 163-182, 1966.]


ISSN: 0016-7606
EISSN: 1943-2674
Coden: BUGMAF
Serial Title: Geological Society of America Bulletin
Serial Volume: 79
Serial Issue: 1
Title: Cenozoic crustal movements in the Sierra Nevada; discussion
Translated Title: of 'Late Cenozoic crustal movements in the Sierra Nevada of California' by M. N. Christensen, 1966
Author(s): Lovejoy, Earl M. P.
Pages: 153-157
Published: 1968
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
Accession Number: 1968-050483
Categories: Structural geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus., table
N32°30'00" - N42°00'00", W124°30'00" - W114°15'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Update Code: 1968
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